This verse, Job 31:19, is part of a longer speech where Job is defending his integrity. He's listing all the things he hasn't done that would make him deserving of the suffering he's experiencing. In this particular verse, he's stating that he has not allowed anyone to suffer from lack of clothing.

Here's a breakdown of what it means:

"If I have seen any perish for want of clothing...": This refers to seeing someone die or be in severe danger of death due to the lack of warm or protective clothing. He's saying he hasn't witnessed this and done nothing to help.
"...or that the needy had no covering;": This is a broader statement. It means he hasn't ignored those who were poor and lacked proper clothing for warmth, protection from the elements, or even basic decency. "Covering" can mean blankets, cloaks, or anything that provides protection and warmth.

In essence, the verse is a declaration by Job that he has always been compassionate and generous toward the poor and vulnerable, ensuring they had adequate clothing to protect them from the elements and maintain their dignity.

Significance in the context of Job:

Defense against accusation: Job's friends believe his suffering is a punishment for sin. This verse is part of his argument that he doesn't deserve such suffering because he has lived a righteous life.
Importance of social justice: It highlights the importance of caring for the less fortunate and ensuring their basic needs are met. In ancient societies, proper clothing was vital for survival and social standing.
Job's Character: It portrays Job as a person of integrity, compassion, and generosity, who actively helped those in need.

So, Job is stating that he was not indifferent to the plight of those who suffered from lack of clothing. He implies that he provided for them and cared for their well-being, which underscores his righteousness in his own eyes.